The Bosch is a high performance PIR detector that usesadvanced signal processing to provide outstanding catchperformance and unsurpassed false alarm immunity. Itcontains an RF transmitter with a maximum range of 150 m(500 ft) in open air.

PIR Signal ProcessingMotion Analyzer II uses multiple thresholds and timingwindows to analyze timing, amplitude, duration, andpolarity of signals to make an alarm decision. It toleratesextreme levels of heat and light caused by heaters and airconditioners, hot and cold drafts, sunlight, lightning, andmoving headlights. There are three sensitivity settings.